BUSCH COBRA NS 0070-0160 C, Installation And Maintenance Instructions Manual

Page: 21 / 24

Technical Data
Technical data NS 0070 C NS 0160 C
Nominal suction capacity
50 Hz
60 Hz m
3
/h (cfm)
m 3 /h (cfm)
70 (41)
85 (50) 135 (79)
160 (94)
Ultimate pressure
Torr
mbar
2,2 x 10
-2
3,0 x 10
-2
2,2 x 10
-2
3,0 x 10
-2
Nominal motor rating
50 Hz
60 Hz kW
kW 4,0
4,4 5,5
6,6
Motor voltage and
current rating
50 Hz
D
200 V
D
230 V
D
255 V
Y 346 V
Y 400 V
Y 440 V
A
A
A
A
A
A
15.9
16.6
20
9.2
9.5
11.7
21
20.5
25
12.2
11.7
14.3
Motor voltage and
current rating
60 Hz
D 200 V
D
277 V
Y 346 V
Y 480 V
A
A
A
A
17.2
15.8
9.9
9.1
27
21
15.4
12.0
Nominal motor speed
50 Hz
60 Hz min -1
min
-1
3000
3600 3000
3600
Noise level (EN ISO 2151)
50 Hz
60 Hz dB(A)
dB(A)
62 68
Ambient temperature °C (°F) 0-40 (32-104) 0-40 (32-104)
Maximal counter pressure Discharge bar 0,2 0,2
Maximum inlet pressure Atmospheric pressure
Cooling water temperature °C (°F) 10 - 30 (50 - 86) 10 - 30 (50 - 86)
Cooling water requirement l/ min
³
3
³
3
Cooling water pressure bar 3 -6 3 -6
Nitrogen requirement approx. slm 0 - 18 0 - 18
Nitrogen overpressure bar 1,5 1,5
Maximal allowed
operationnal speed
Refer to nameplate
Leakrate mbar x l/s
£
1 x 10
-6
Weight approx. kg 250 250
NS 0070-0160 C
Technical Data
0870570353 (En)
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